audio-frequency.com
HeadWize - Project: Build These Noise-Canceling Headphones by Jules Ryckebusch
http://www.audio-frequency.com/sound%20cancel/noise_prj.htm
Build These Noise-Canceling Headphones by Jules Ryckebusch. Fig 1 The Noise-Canceling Headphones is a simple phase-inverting amplifier. All inverted sounds played back through the headphones cancel out the original sounds, leaving nothing but silence. The amount of canceling can be adjusted for different situations. A CD player or cassette tape can be listened to if you want to "fill the quiet.". A final note on using operational amplifiers as headphone amps: Most generic ones will not supply enough curr...
fidaralvarisi.wordpress.com
copian | Fidaralvarisi's Blog
https://fidaralvarisi.wordpress.com/copian
Fidaralvarisi —– orang yang tidak bahagia adalah orang yang paling takut perbahannya(mc.laughlin). Column of the May 1998 issue of Popular Electronics. C1, C3, C5, C7, C15, C16. 005uF Ceramic Disc Capacitor. 0015uF Ceramic Disc Capacitor. C11, C12, C13, C14. 01uF Ceramic Disc Capacitor. R8, R9, R10, R11. TDA1524A Tone Control IC. Other connectors of your choice. Board, Wire, Knobs, 18 Pin Socket. J1 is the left input, J4 is the right input. J2 is the left output, J3 is the right output. R1, R10, R13.
gvc-lighting.blogspot.com
GVC Lighting: 12VDC Fluorescent Lamp Driver
http://gvc-lighting.blogspot.com/2009/05/12vdc-fluorescent-lamp-driver.html
Tuesday, May 19, 2009. 12VDC Fluorescent Lamp Driver. Http:/ www.electronics-lab.com/projects/motor light/027/index.html. A number of people have been unable to find the transformer. Needed for the Black Light. Project, so I looked around to see if I could find a fluorescent lamp driver that does not require any special components. I finally found one in Electronics Now. 100uf 25V Electrolytic Capacitor. 001uf 25V Ceramic Disc Capacitor. 001uf 1KV Ceramic Disc Capacitor. Board, Wire, Heatsink For Q1.
gvc-lighting.blogspot.com
GVC Lighting: May 2009
http://gvc-lighting.blogspot.com/2009_05_01_archive.html
Tuesday, May 26, 2009. This site contains people who design lighting controls for commercial spaces. Http:/ www.lightingdesignlab.com/commercial/index.html. This site contains designers who design commercial lighting for a. Http:/ www.lighttechdesign.com/selectedresidential.htm. Http:/ www.lighttechdesign.com/selectedresidential.htm. There is some guidance available regarding commercial lighting. Controls at this site. Http:/ www.starfieldcorp.com/. Monday, May 25, 2009. Tuesday, May 19, 2009. Here it is...
micinverters.blogspot.com
INVERTERS! INVERTERS! INVERTERS!: April 2009
http://micinverters.blogspot.com/2009_04_01_archive.html
Inverters,Power supply, Transformers, Transistors(BJT,UJT,JFET,MOSFET), Diodes(Zener,Tunnel,Varactor), Regulators,Capacitors(Polarized and non-polarized)IC (CMOS;4047,4069,4093,4017,4013),IC SOCKETS SG 3524.Resistors. Saturday, April 11, 2009. Inverter 100W 12VDC to 220V by IC 4047 - IRF540. Inverter 100W 12VDC to 220V by IC 4047 - IRF540. This is inverter 100W. Circuit, use IC 4047. Alike inverter 100W transistor. I use Mosfet IRF540. It good Idae, power output 100W from transformer 2-3A. C2,C3 0.01...
ak83.blogfa.com
جدیدترین اختراعات - آمپلیفایر 22 وات واقعی
http://ak83.blogfa.com/page/amp20w.aspx
آمپلیفایر 22 وات واقعی. The 22 watt amp is easy to build, and very inexpensive. The circuit can be used as a booster in a car audio system, an amp for satellite speakers in a surround sound or home theater system, or as an amp for computer speakers. The circuit is quite compact and uses only about 60 watts. The circuit is not mine, it came from Popular Electronics. 39K 1/4 Watt Resistor. 10uf 25V Electrolytic Capacitor. 100uf 25V Electrolytic Capacitor. 47uf 25V Electrolytic Capacitor.
amazingcircuits4u.blogspot.com
srikanth: VIDEO ACTIVATED RELAY
http://amazingcircuits4u.blogspot.com/2010/05/video-activated-relay.html
160;Friday, May 7, 2010. This simple circuit from the May 1996 Think Tank column of Popular Electronics. Activates a relay when it senses a composite video signal. This allows you to use the tuner built into your VCR to turn on and off older TVs that are not equipped with a remote. It can also be used to activate surround sound equipment, turn off the room lights, turn on video game consoles, etc. For such a simple circuit, it is very versatile. 10K 1/4 W Resistor. 1K 1/4 W Resistor. 33K 1/4 W Resistor.
fidaralvarisi.wordpress.com
copian 3 | Fidaralvarisi's Blog
https://fidaralvarisi.wordpress.com/copian-3
Fidaralvarisi —– orang yang tidak bahagia adalah orang yang paling takut perbahannya(mc.laughlin). 3 watt fm transmitter. This is a circuit that I’ve build a few years ago for a friend, who used it in combination with the BLY88 amplifier to obtain 20 W output power. From the notes that I made at the original schematic, it worked fine with a SWR of 1 : 1.05 (quite normal at my place with my antenna). R1,R4,R14,R15. 680 Ohm 1/4W Resistor. 150 Ohm 1/4W Resistor. 100 Ohm 1/4W Resistor. 68 Ohm 1/4W Resistor.
